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Five resistors are connected as shown in the diagram. The potential difference between points A and B is 25 V.
-What is the equivalent resistance between the points A and B?
Hormones
Biochemical substances produced in small amounts by specialized cells in organisms, transported in tissue fluids to stimulate specific cells or tissues into action.
Hemocoel
The primary body cavity of most invertebrates, particularly those with an open circulatory system, containing circulating fluid (hemolymph) that directly bathes the organs.
Closed Circulatory System
A cardiovascular system where blood is enclosed within blood vessels and circulated throughout the body without direct contact with body tissues.
Amphibian Heart
A three-chambered heart found in amphibians, featuring two atria and one ventricle for circulation.
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